This issue was reported manually by pjiricka.
It already has 1 duplicates
Build: NetBeans IDE Dev (Build EaselCSS-187-on-20120524)
VM: Java HotSpot(TM) 64-Bit Server VM, 23.0-b21, Java(TM) SE Runtime Environment, 1.7.0_04-b21
OS: Mac OS X
pjiricka: Switched back to IDE after doing something else.
Maximum slowness yet reported was 160074 ms, average is 160074
Created attachment 119873 [details]
Originally this was a duplicate of bug 176458, which is filed against JIndent plugin, but I don't have this plugin, so it's a different issue.
Looking at the snapshot this looks like a JDK problem - 160s is spent in a native Mac OS X method, which is called from Swing code in AWT thread.
JDK bug #7171787.